Başakşehir Futbol Kulübü

İstanbul Başakşehir Futbol Kulübü is a Turkish professional football club based in the Başakşehir district of Istanbul. The club is better known as İstanbul Başakşehir or, due to sponsorship, Medipol Başakşehir.The club was founded in 1990 as İstanbul Büyükşehir Belediyespor (Istanbul Metropolitan Municipality). They first reached the highest level in Turkish Football in 2007–08. They play their home games at the Stadium in Istanbul and are owned by the Ministry of Youth and Sports. The club is one of six Süper Lig teams based in Istanbul, along with Fenerbahçe, Galatasaray, Beşiktaş, Fatih Karagümrük S.K. and Kasımpaşa. In the 2016–17 season, they participated in the Süper Lig, and UEFA Europa League. In the 2017–18 season they reached the play-off round of the UEFA Champions League qualifying round. They won their first top flight title in the 2019–20 season.

The club was founded in 1990. The club's former name was "ISKI SK" and they were owned by the municipality's water distribution company. ISKI SK competed in the Regional Amateur Football League in the 1990–91 season and were promoted to the TFF Second League. After promotion, the club's name changed to İstanbul Büyüksehir Belediyesi. The club played in the TFF Second League until 1996, but after the 2006–07 season they were promoted to the Süper Lig. Finishing 12th in the 2007–08 season enabled them to remain in the Süper Lig for the 2007–08 season. In the 2009–10 season, the club finished the season in 6th place. In the 2012–13 season, the club finished 16th and relegated to the TFF First League. But it finished in the TFF First League as champions and made an immediate return to the top level in the 2013–14 season.

In 2014, the club was bought by new owners with alleged ties to the ruling Justice and Development Party. Its name was changed in June 2014 to "İstanbul Başakşehir Futbol Kulübü".During the following 2014–15 and 2015–16 seasons, the club finished in 4th place.

On 25 May 2015, İstanbul Başakşehir Futbol Kulübü signed a sponsorship agreement with "Medipol Eğitim ve Sağlık Grubu" (Medipol Education and Health Group) for four years and the team's name changed to "Medipol Başakşehir Futbol Kulübü".

On 19 July 2020, Başakşehir were crowned champions of the Turkish Süper Lig for the first time in the club's history.They also became only the sixth club in the competition's history to win the league title and the fourth club from Istanbul to do so.

Before the name change İstanbul Başakşehir were playing their games at Atatürk Olympic Stadium but starting from the 2014–15 season they began to play their games at the Başakşehir Fatih Terim Stadium. 26 July 2014 opened officially to public. The venue has a capacity of 17,800 spectators. It is the new home of İstanbul Başakşehir playing in the Süper Lig. The construction of the stadium was completed in about 16 months, and it cost ₺178 million.